We were displaying two progress bars for the same thing, and hiding one
of them.
Displaying just one of them and readjusting the styles accordingly is a
bit more intuitive IMHO.
We're also getting the text inside the progress bar out of it; its
purpose inside an element with the `progressbar` role is to provide the
same information as the progress bar (which we aren't exactly doing,
although it could be argued that we do), and in order to be accessible
we should provide the same text in the `aria-valuetext` field, which we
aren't doing. This also simplifies our CSS, which was working because we
defined a padding which covered the height of the hidden extra progress
bar and would have needed quite a few changes if we kept just one
progress bar with text inside it. We can also remove a few CSS rules
which we added to override foundation's rules for the
`progress-meter-text` class.
We were setting it to 0, and so screen reader users might be confused by
it.
The easiest way to reuse the code and using it for both this attribute
and the width of the progress bar is to move this method to the voting
style, just like the other methods used in this view.
Note the progressbar ARIA role might not be right, since this isn't a
task which is "progressing", but an indicator of the amount spent and
amount available, which is exactly what the <meter> HTML5 tag was
designed for.
We might use a <meter> tag in the future. For now, I'm leaving it as it
is because I'm not certain about how well <meter> is supported in
accessibility tools, and because it's definitely not supported in
Internet Explorer 11, which we haven't officially dropped support for.
We were rendering an individual ballot, and then rendering all ballots
(including the already rendered one). So we can skip the first part, as
pointed out by microweb10 in the comments of pull request 3036.
We're passing the amount as a paramenter to the "remaining" text, so it
makes sense to pass it to the "amount spent" text as well.
Here we're also changing the I18n key to the text saying users can
change their vote, so it's easier to note the text is about changing
their vote, and not about the projects they have voted so far.
The `refresh_ballots` partial ignores the `investment` parameter
completely; instead, it iterates over the investments in the
`@investments` instance variable.
In general, we always use relative URLs (using `_path`), but sometimes
we were accidentally using absolute URLs (using `_url`). It's been
reported i might cause some isuses if accepting both HTTP and HTTPS
connections, although we've never seen the case.
In any case, this change makes the code more consistent and makes the
generated HTML cleaner.
Using the `_html` suffix in an i18n key is the same as using `html_safe`
on it, which means that translation could potentially be used for XSS
attacks.
The difference is `html_safe` allows every HTML tag, including the
`<script>` tag, while `sanitize` only allows tags which are considered
safe. In this case, we want to allow a `<span>` tag in a translation,
and links inside flash messages.
